In this scenario, we are interested in the time duration from when Annabel returns home with the bananas until she bakes the banana bread, which is 5 days later.
The function \( f(t) = 8(2)^t \) models the number of fruit flies, where \( t \) is the number of days after returning from the market. Since she bakes the banana bread 5 days after returning, the appropriate domain for \( t \) (the number of days) would be from 0 to 5.
Thus, the correct domain is:
\[ 0 \leq t \leq 5 \]
So the appropriate response is:
0 ≤ t ≤ 5.